2025 Agate and Mineral Show at OMSI

Photo courtesy of OMSI

Explore the wonders of nature at the annual Agate and Mineral Show. The event is held at Portland’s very own science center, OMSI.

Enjoy exhibits, special displays and activities, demonstrations and more at this free, family-friendly event. 

2025 Agate and Mineral Show at OMSI

The Agate and Mineral Show is March 7-9, 2025, from 10 a.m. to 5 p.m. at OMSI.

The show will have more than 20 exhibits on display. Explore a variety of rocks, minerals and fossils from around the world.

Special displays and activities at the show include:

• Live demonstrations: Experienced OAMS members showcase their lapidary skills and show you how to transform stones into polished gems.
• Daily presentations: Expert guest speakers discuss a variety of topics related to geology, mineralogy and paleontology.
• Kids’ corner: There are fun, educational activities, along with the spinning wheel to win prizes. 
• Raffles: By raffle tickets to win exciting prizes.
• Scavenger hunt: All ages can test their knowledge and explore the show by participating in the scavenger hunt.

The event is free to attend. All proceeds from purchases made at the show are donated to OMSI’s summer camp program. 

The Agate and Mineral Show takes place at OMSI’s auditorium, 1945 SE Water Ave. in Portland. Parking fees range from $5-$8. For more information, visit the event website. 

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